Documentation edits for OOF

Documentation edits for OOF
-------------------------------------------------------------

Change-Id: I84f9992bd61e10ef9f263b68a28cca100a515437
Issue-ID: POLICY-536
Signed-off-by: Saryu Shah <ss3917@att.com>
diff --git a/docs/platform/oofhpa.rst b/docs/platform/oofhpa.rst
index 2d6850c..9658d54 100644
--- a/docs/platform/oofhpa.rst
+++ b/docs/platform/oofhpa.rst
@@ -107,15 +107,15 @@
                         type: string
                         constraints:
                         -   valid_values:
-                            - <
-                            - <=
+                            - '<'
+                            - '<='
                             - '>'
                             - '>='
                             - '='
                             - '!='
-                            - any
-                            - all
-                            - subset
+                            - 'any'
+                            - 'all'
+                            - 'subset'
                 unit:
                     type: string
                     required: true